/*
 * Copyright (c) 2014, 2019, Marcus Hirt, Miroslav Wengner
 *
 * Robo4J is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Robo4J is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Robo4J. If not, see <http://www.gnu.org/licenses/>.
 */
package com.robo4j.hw.rpi.lcd;

/**
 * Some simple string utils.
 * 
 * @author Marcus Hirt (@hirt)
 * @author Miroslav Wengner (@miragemiko)
 */
class StringUtils {

	public static String rightFormat(String string, int length) {
		return String.format("%" + length + "s", string);
	}

	public static String centerFormat(String string, int length) {
		int diff = length - string.length();
		return String.format("%-" + length + "s", getSpaces(diff / 2) + string);
	}
	
	private static String getSpaces(int total) {
		String tmp = "";
		for (int i = 0; i < total; i++) {
			tmp +=" ";
		}
		return tmp;
	}

	public static void main(String ... bla) {
		System.out.println(centerFormat("Center me", 20));
	}
}
